Articles | Volume 5, issue 4
Wind Energ. Sci., 5, 1743–1754, 2020
https://doi.org/10.5194/wes-5-1743-2020

Special issue: Wind Energy Science Conference 2019

Wind Energ. Sci., 5, 1743–1754, 2020
https://doi.org/10.5194/wes-5-1743-2020
Research article
17 Dec 2020
Research article | 17 Dec 2020

Fatigue lifetime calculation of wind turbine blade bearings considering blade-dependent load distribution

Oliver Menck et al.

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Cited articles

ASTM International: ASTM E1049 – 85(2017) – Standard Practices for Cycle Counting in Fatigue Analysis, 2017. a
Bossanyi, E. A.: Individual blade pitch control for load reduction, Wind Energy: An International Journal for Progress and Applications in Wind Power Conversion Technology, 6, 119–128, 2003. a
Bossanyi, E. A.: Further load reductions with individual pitch control, Wind Energy: An International Journal for Progress and Applications in Wind Power Conversion Technology, 8, 481–485, 2005. a
Chen, G. and Wen, J.: Load performance of large-scale rolling bearings with supporting structure in wind turbines, J. Tribol., 134, 041105, https://doi.org/10.1115/1.4007349, 2012. a
Daidié, A., Chaib, Z., and Ghosn, A.: 3D simplified finite elements analysis of load and contact angle in a slewing ball bearing, J. Mech. Design, 130, 082601, https://doi.org/10.1115/1.2918915, 2008. a
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Short summary
Blade bearings of wind turbines experience unusual loads compared to bearings in other industrial applications, which adds some difficulty to the application of otherwise well-established calculation methods, like fatigue lifetime. As a result, different methods for such calculations can be found in the literature. This paper compares three approaches of varying complexity and comes to the conclusion that the simplest of the methods is very inaccurate compared to the more complex methods.